Kratom is a widely available herb that is legal in the United States, though, like any other legal high, that could change at any time. The psychoactive effects of Kratom are similar to that of opiates or opioids, according to TheSite.org.
Kratom is typically brewed into a tea or ingested in a capsule. Although the psychoactive effects resemble those associated with opiates, the reaction to kratom is generally much milder. Minor side effects such as nausea may occur, according to TheSite.org, especially with large doses. If used habitually, kratom can lead to dependence. For those reasons, it should be used sparingly. Also, users should never operate a vehicle after using kratom or any other intoxicating substance.